Detachable closure for containers



A. L. KRONQUEST.

DETACHABLE CLOSURE FOR CONTAINERS.

APPLICATION FILED MAY25. 1920.

1,355,151. Patented Oct. 12,1920.

attozvwus UNITED STATES PATENT OFFICE.

ALFRED L. KRONQUEST, OF CHICAGO, ILLINOIS, ASSIGNOR TO CONTINENTAL CANCOMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

DETACHABLE CLOSURE FOR CONTAINERS.

Specification of Letters Patent.

Patented Oct. 12, 1920.

Application filed May 25, 1920. Serial No. 384,120.

T 0 all whomt may concern Be it known that I, ALFRED L. KRON- QUEST, acitizen of the United States, residing at Chicago, in the county ofCook, State of Illinois, have invented certain new and usefulImprovements in Detachable Closures for Containers, of which thefollowing is a description, reference being had to the accompanyingdrawing and to the figures of reference marked thereon.

The invention relates to new and useful. improvements in removableclosures for containers, and more particularly to a container whereinthe closure may be released by the prying out of a retaining member.

An object of the invention is to provide a closure for containers of theabove charact-er wherein the pry-out retaining member is so disposedthat the flange on the closure may be rolled around said retainingmember and the flange on the container body thereby pressed into sealingcontact with the flange on the closure and the sealing material.

A further object of the invention is to pro vide a pry-out member of theabove character wherein the ends are reversely tapered so as to overlap,thus forming substantially a continuous retaining member, and at thesame time, providing a construction wherein one end of the retainingmember is readily accessible for prying the same out to release theclosure from the container body.

These and other objects will'in part be obvious and will in part behereinafter more fully disclosed.

In the drawings Figure 1 is a vertical sectional View through a portionof a container embodying my improvements;

Fig. 2 is a side view of the same with a part of the flange of theclosure broken. away' to show the accessibility of one end closure foreach end thereof. 0116 of the container-ends is secured to the bodyportion by means of a pryout retaining strip or wire, while the othercontainer end is secured to the body portion by double seaming. The endhaving the pry-out retaining member is preferably applied at the factoryby the manufacturer of the container, and after the container has beenfilled, then the other end is applied, and joined by a double seam tothe container body by the packer.

The container body is provided with a horizontally ext-ending flange andthe detachable closure or closing end is secured thereto by a retainingwire or strip placed against the under face of the flange on the canbody, and the flange on the container end is rolled around saidretaining wire so as to force the wire into contact with the lower faceof the flange on the container body and draw the flange on the closingend against the packing material placed between the flanges.

Referring more in detail to the drawings, I have shown my improvement asapplied to a container consisting of a body portion 1, one end of whichis closed by a closure end 2 which is rolled into the ordinary doubleseam, while the other end of the container body is closed by adetachable closure end 3. As above noted, the end 3 is first attached tothe container body and this may be done by the manufacturer of thecontainer. After the container is filled, then the end 2 is applied andsecured to the body portion by a double seam, and this may be done bythe packer.

The body portion 1 is provided with a horizontally extending flange 4.The closure end 3 is provided with a recess 5 forming a vertical wall 6which fits within the end of the container body. Said closure end 3 alsois provided with an outwardly extending flange 7. A suitable packingindicated at 8 may be placed between the flanges 4 and 7. After theclosure end has been inserted in the container body, then the retainingwire or strip 9 is placed about the end of the container body andagainst the under face of the flange l. This retaining wire ispreferably round in cross section, and the ends thereof are reverselytapered as indicated respectively at 10 and 11. hen in place, these endsoverlap as shown in Fig. 2. The flange 7 of the closure end is rolledaround this retaining member 9 as clearly shown in Fig. 1. This may bedone by the ordinary seaming roll. The free edge 12 of the flange isspaced from the wall of the body por- 1 tion of the container a distanceslightly less than the diameter of the retaining member 9, and as aresult, during the rolling action which carries the flange of theclosure end around said retaining'wire 9, said wire 9 is pressed firmlyagainst the under face of the flange 4 and at the same time, the flange7 is drawn down into sealing contact against the sealing materialbetween the two flanges. Thus it is that a sealed joint is formedbetween the closure end 3 and the body of the container.

lVhen it is desired to remove this detachable closure end 3, the tine ofa fork or the like indicated in Fig. tat 13 is inserted underneath theextreme free end 14 of the retaining member 9, and by forcing the tineof the fork between the overlapping ends 10 and 11, one end of theretaining member 9 will be forced out through the space between the freeedge 12 of the flange of the closure end and the side wall of thecontainer body. It will be noted that this extreme end 14 is at thelower side of the retaining pry-out wire as viewed in'Fig. 2, and istherefore exposed so as to readily permit the insertion of the tine ofthe fork between the ends of the pry-out retaining member.

The flange of the closure end will be unrolled sufficiently to permitthe retainer wire to be pried out. After the wire has been removed, thenthe closure end may be readily removed from the can body, as thediameter of the free edge 12 of the flange 7 is less than the extremeouter diameter of the flange 4.

It is obvious that minor changes in the details of construction and thearrangement of the parts may be made without departing from the spiritof the invention as set forth in the" appended claims.

Having thus described the invention,

what I claim as new and desire to secure by Letters-Patent, is

1. A container comprising a body portion having a flange extendingoutwardly therefrom, a closure end for closing one end of the bodyportion, said closure end being adapted to fit within the end of thecontainer body and having a flange extending outwardly over the flangeon the container body, a suitable packing arranged between said flanges,a pry-out retaining member disposed beneath the flange on the containerbody, said flange on the closure end being rolled around said pry-outretaining member a sufficient distance so as to force said pry-outretaining member against the under face of the flange on the containerbody and thereby draw the flanges on the closure end and the containerbody into sealing contact.

2. A container comprising a body portion having a flange extendingoutwardly therefrom, a closure end for closing one end of the bodyportion, said closure end being adapted to fit within the end of thecontainer body and having a flange extending outwardly over the flangeon the container body, a suitable packing arranged between said flanges,a ry-out retaining member disposed beneath t e flange on the containerbody, said flange on the closure end being rolled around said pry-outretaining member a sufflcient distance so as to force said pry-outretaining member against the under face of the flange on the containerbody and thereby draw the flanges on the closure end and the containerbody into sealing contact, the ends of said pry-out retaining memberbeing revei sely tapered so that the extreme end of oIie tapered portionis exposed whereby the implement may be readily inserted between theends of said pry-out retaining member for prying out one end of saidretaining member and thus releasing the closure end.

In testimony whereof I aflix my signature.

ALFRED L. KRONQUE ST.

